Improvement in lamps



UNITED STATES PATENT OFFICE.,

lIVlPROVElVI ENT IN LAMPS.

Specification forming part of Letters Patent No. 36,413, dated September 9, 1862.

To au whom, it may concern:

Be it known that we, WILLIAM KUEBLER and HENRY BEIERLEIN,both of the city of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in Lamps; and we do hereby declare the following to be afnll and exact description of the same, reference being had to the accompanying drawings, and to the figures and letters of reference marked thereon.

Our invention consists in an improved construction of lamps for burning coal-oil Without a' chimney, and has for its object, rst, the production of a perfect combustion of the vapor or gas by effectually preventing all undue escape of the same; secondly, the production of a brighter and larger lat flame than has heretofore been obtained with the same con,- sumption of oil, and this Without regard to the shape of the Wick employed, and, thirdly, in materially diminishing the accumulation of lampblack in the gas-condensing chamber or deiector.

In order to enable others to understand fully the nature of our invention, We will now proceed particularly to describe the same, reference being had to the accompanying drawings, making part of this specification, and in which the same letters of reference allude to like parts in both views, of which- Figure 1 is a sectional elevation of our improved burner, and Fig. 2 also a sectional elevation at right angles to Fig.. 1.

a is the Wick-tube. It is attached to the small dome-shaped piece b, which is provided with the ordinary screw-threads for attachment to the metal cap in the top of the lamp. To the same piece is also attached the perforated conical part c, which carries the gascondenser d and the draft-chamber e, the two being connected by the perforated cone f. rPhe gas-condenser dis provided with an internal bottom iiange, g, which rests upon the top of the cone f, and is thus placed about one-fourth of an inch above the top of the Wicktube a. Through its opening t' the Wick is allowed to protrude slightly into the gas-condenser d.

Experiments have shown us the importance of placing this opening in the described position and of making it exactly proportionate to the size of wick employed, as a perceptible deviation from this arrangement becomes injurious to the action of the whole. The air admitted through the small holes h h in the part c is partly admitted into the condenser d through the opening z' to aid in the condensation ofthe gas from the wick-flame. Any excess of air admitted through the holes 7L h is carried through holesjj into the draft-chamber e, which is mainly supplied with air through the holes 7c k in the outer shell.

An important4 feature of our invention consists in the peculiar shape of the top part of the gas-condenser d and its slit Z, and also in the relative position and dimensions of the slit o in the draft-chamber c to the slit Z in d. The peculiarities of these parts and of their relative positions and dimensions (fully represented in the annexed drawings) are the resuit of a long and tedious series of experiments, and We are convinced of their superiority in action over all constructions of coal-oil lamps Without chimneys which We have examined and tested.

We now desire to be understood as being Well aware of the existence of various constructions of coal-oil lamps without chimneys in which separate parts of our improved lamp have been heretofore in use, but differently combined and constructed, among which are prominent the patents of Emil Tritten, dated December 3, 1861; E. T. Covell, dated February 18,1862; W. J. Palmer, February 25, 1862, and oth'ers.- We therefore do not broadly claim the separate parts of which our improved burner is composed; but

What We claim, and desire to secure by Letters Patent, is-

1.. The described burner for coal-oil lamps Without a chimney, in which the gascondensing chamber d is provided with an internal bottom flange, g, the position ofg and its proportionate size of opening being in relation to the Wick, arranged as set forth.

2. The slitted gas-condenser d, combining with the internal bottom ange, g, the slitted top, as set forth, when the slit Z is shaped and situated in relation to the slit v in the draftchamber e as herein set forth..

VILLI AM KUEBLER. HENRYA BEIER-LEIN.

Witnesses:

THEoDoRE BERGNER, CHAs. E. PANooAsT, 

